How cooked garlic differs from raw in toxicity
Cooking breaks down garlic's cell walls, releasing more organosulfur compounds into the stew liquid. Your 25 kg dog didn't just ingest whole cloves—they consumed a broth saturated with dissolved toxins. The heat also makes these compounds more bioavailable, meaning faster absorption into the bloodstream compared to raw garlic.
Stews often concentrate garlic flavor through reduction, so several cloves' worth of toxins may exist in just half a cup of liquid. The fat content helps the compounds cross into the bloodstream more efficiently too. Tell your vet if the stew contained butter or oil—this detail changes absorption rates.
The weight advantage of a 25 kg dog
While no amount of garlic is truly safe, your dog's larger body mass provides some protection compared to smaller breeds. Their blood volume can dilute the toxins somewhat, buying time for treatment. However, 'several cloves' likely crosses the danger threshold even for a dog this size—especially if they ate the cooking liquid.
Larger dogs sometimes show delayed symptoms because their circulatory system takes longer to manifest anemia. Don't mistake this for safety—internal damage begins immediately. Their size just means collapse might occur at day 5 instead of day 3.
Why you can't wait for symptoms
Garlic's hemolytic effects work silently for days before pale gums or weakness appear. By the time your dog shows signs, significant red blood cell destruction has already occurred. Blood transfusions become more likely if treatment starts after symptoms versus proactive care within hours of ingestion.
The stew's other ingredients matter—tomatoes or wine increase stomach acidity, accelerating toxin release. Meat proteins may bind some compounds temporarily, but they'll still absorb eventually. Assume everything in that bowl delivered garlic toxins, not just visible clove pieces.
Emergency steps while waiting for the vet
Collect any remaining stew to show the vet—they'll assess garlic concentration by volume. Note the exact time of ingestion; this determines when diagnostic blood tests should occur. Don't induce vomiting—garlic's oils can aspirate into lungs, causing chemical pneumonia.
If the dog drank the stew broth, their stomach may absorb toxins faster than if they ate solid chunks. Watch for early subtle signs like refusing treats or lagging on stairs—these precede classic anemia symptoms. Even if they seem fine now, internal damage progresses hourly.
The step-by-step response, from the first minute to the vet visit, is in our Chives, Garlic & Allium Poisoning in Dogs and Cats emergency guide.